Inner hole fluted shaft direction dimension measuring implement

A technology of axial dimension and inner hole groove, which is applied in the field of measuring tools for the axial dimension of inner hole groove, can solve the problems of difficult measurement, etc., and achieve the effect of simple manufacture, low cost and reasonable design

Inactive Publication Date: 2008-03-12
陈焕春
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AI Technical Summary

Problems solved by technology

[0002] Now some mechanical parts are designed with annular grooves in the holes. The measurement of the width of the groove and the size of the groove to the end face of the inner hole cannot be completed with ordinary measuring tools, especially for small-width grooves. Accurately measure its axial dimension, It is more difficult to measure

Method used

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  • Inner hole fluted shaft direction dimension measuring implement

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Embodiment Construction

[0013] Referring to accompanying drawing 1, the measuring tool for the axial dimension of the inner hole groove consists of a ball measuring head 1, a screw 2, a measuring body 3, a handle 4, a spring washer 5, a sliding measuring rod 6, a bolt 7, a dial indicator 8, a split sleeve 9 and Composed of 10 knurled head screws. Ball measuring head 1 is contained in one end of sliding measuring rod 6 with screw 2 locking (seeing accompanying drawing 4) in the screw hole perpendicular to and intersecting with sliding measuring rod 6 axis lines with its stud. The sliding measuring rod 6 is installed in the inner hole of the measurement concrete 3 and the fit is H7 / g6, and the large end face of the measuring concrete used for measuring is matched with the sliding measuring rod. The verticality tolerance of the inner hole is 0.01 mm. The handle 4 passes through the axial groove of the concrete 3 and is installed on the sliding measuring rod 6 with the stud at the front end, that is, the...

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Abstract

The invention relates to an axial dimensions measuring device for an inner hole groove; a spherical probe is arranged on one end of a slide measuring rod, the slide measuring rod is arranged in the inner hole of the measuring device body for clearance fit, a handle passes through an axial groove of the measuring device body and is arranged on the slide measuring rod with a stud bolt of the front end of the handle, a dial indicator is arranged on the small end of the measuring device body, the probe of the dial indicator props on one end without the spherical probe of the slide measuring rod, and a knurled thumb screw is arranged in a screw hole corresponding with the measuring device and can fix the slide measuring rod in the necessary position. The spherical probe is placed into a groove of the workpiece hole and the large end surface is close to the outer end of the inner hole of the measured workpiece, the slide measuring rod drives the spherical probe to axially move and be respectively close to the two sides of the groove in order to result in that the dial indicator shows two numerical values. Under the fit of a standard block or a measuring caliper, the width size of the groove in the inner hole of the workpiece and the axial position size from the groove to the inner hole end surface can be gained. The measuring device has the advantages of the reasonable design, the simple manufacture, the low cost, the convenient use and the fast and accurate measurement.

Description

technical field [0001] The invention relates to a measuring tool for mechanical parts, in particular to a measuring tool for the axial dimension of inner holes. Background technique [0002] Now some mechanical parts are designed with ring grooves in the holes. The measurement of the width of the groove and the size of the groove to the end face of the inner hole cannot be completed with ordinary measuring tools, especially for small width grooves. Accurate measurement of its axial dimension, Measurement is more difficult. Contents of the invention [0003] The object of the present invention is to provide a measuring tool for the axial dimension of the groove in the inner hole, which can conveniently and reliably measure the precise axial dimension of the groove in the inner hole. [0004] The technical solution adopted by the present invention to solve the technical problem is: a ball measuring head that can be put into the groove of the inner hole is used to fix one en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/00G01B5/02
Inventor 陈焕春陈硕
Owner 陈焕春
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